Safety-stirrup.



W. P. SARRETT dz T. A. BAKKE.

SAFETY STIRRUP.

APPLICATION FILED JUNE 10, 1912.

1,079,801 Patented Nov. 25. 1913.

W/7AIE88ES:# fl INVENTORS COLUMBIA. PLANDGRAPH c0.. WASHINGTON, n. c.

UNITED STATES PATENT OFFICE.

WILLIAM P. SARRETT AND THORE A. BAKKE, OF WALLOWA, OREGON.

SAFETY-STIRRUP.

Specification of Letters Patent.

Patented NOV. 25,1913.

To all whom it may concern Be it known that we, WILLIAM P. SARRETT andTHORE A. BAKKE, citizens of the United States, and residents of Wallowa,in the county of Wallowa and State of Oregon, have invented certain newand useful Improvements in Safety-Stirrups, of which the following is aspecification.

This invention relates to improvements in safety stirrups.

The object of the invention is to provide a stirrup so constructed thata longitudinal and transverse motion permits one side of the stirrup todisengage and open thereby releasing the foot of the rider.

with this and other objects in view, the invention consists of certainnovel features of construction, and the combination and arrangement ofparts as will be more fully described and claimed.

In the accompanying drawings: Figure 1 represents a rear elevation ofthe stirrup in closed or operative position; Fig. 2 is a similar view ofthe stirrup in released or inoperative position; Fig. 3 is a sideelevation of the stirrup in the position shown in Fig. 2; Fig. 4 is aside elevation taken from the inner side of the stirrup and with partsbroken out; Fig. 5 is a similar view taken from the outside of thestirrup ;'Fig. 6 is a detail side elevation; and Fig. 7 is a similarview.

In the embodiment illustrated the invention is shown applied to a lefthand stirrup but it may, of course, be used equally well on a right handstirrup.

The stirrup shown comprises a foot plate or tread member A pivotallyconnected at one end as shown at H with a link I. This link I is pivotedat its upper end to a side member or standard B and positioned to swingin a plane at right angles to the plane in which the tread member Aswings, said link being pivoted at F. The free end of the foot plate Ais detachably engaged with the side member G as shown at G. A spacingmember or cross bar D connects the upper ends of the side bar members Band G, and is preferably in the form of a sleeve having bolts Eextending therethrough and through the ends of the side sections. Thismember 1) while it constitutes a spacing element for the side membersalso is designed to be engaged by a suitable strap, not shown, and whichconnects the stirrup to the saddle.

A catch J at the free end of the foot plate A engages a shoulder 0 onthe member C when the plate is in operative or engaged position as shownclearly in Fig. 4:. This catch J has a hook d at its free end whichengages the shoulder a and is provided at one side thereof with a recesswhich fits on a supporting hook f carried by the side member O. A pin Gon the side member C engages a cam recess or track 6 in the cam catch J.This end of the tread plate A is held in closed position by a platespring 6 secured at one end to the side member C and which bears on theupper hook shaped end d of the cam J and holds said hook yieldably inengagement with the shoulder 0. By this connection of the free end ofthe plate A with the side member 0 the same movement may be effectedhere that is produced at the hinge F at the other end of the plate untilthe cam J becomes disengaged at the points 0 and f from the member 0when the stirrup opens and the tread plate A swings out into theposition shown in Figs. 2 and 3.

The hinge F is preferably provided with a stop 2' which permits the linkI to rotate only a distance sufficient to permit the cam J to disengagefrom the shoulders 0 and f and causes the stirrup to assume the positionshown in Fig. 3. This stop 1' also prevents rotation of the link in theopposite direction.

A plate spring 72 mounted on a member I) engages a lug j on the link orcam member I and assists in holding the tread plate yieldably inoperative position. The spring j is shown supported and held in positionby a screw I and the groove n also by a slot in the inner portion of theside member B.

The side members B and C are preferably constructed of three stripsfastened together by rivets as is shown in Fig. 7.

In the use of this improved stirrup should the rider fall and his footremain in engagement with the stirrup the pull exerted thereby willcause the cam catch j to become disengaged fro-m the side member Cagainst the tension of the springs b and Z0 and thereby release thetread plate A and cause it to swing in the position shown in Fig. 2 thusreleasing the riders foot and preventing danger of his being dragged.

While we have described our invention with more or less minuteness asregards de berssand a tread plate pivotally connected atone end to oneof said" side members to SWiIl in lanes at ri ht an les to each -other,and means: for detachably connecting the otherend of said plate With theother side member.

2. A. safetystirrup comprising side mem bersand, a tread plate pivotallyconnected at one end to one of said side members to swing in planes atright angles to each other,

.means for ,detachably connecting the other end of said plate With theother side memhem-said? means comprising a cam catch on ,sald itreadplate, shoulders on said s1de mem- -ber- 1for engagement by said camcatch, and

a spring for holding said shoulders and catch in yieldable engagement.

3. A safety stirrupcomprising side mem-' bers, a spacer connecting theupper ends of said side members, a link pivotally connected at one endwith the free end of one of said side members, a tread plate pivotallyconnected With said link to swing in a plane at right angles to saidlink, and cooperating means on the other side member and the free end ofsaid tread plate for detachably connecting said plate and member.

4. A safety stirrup comprising side members, a tread plate pivotallyconnected with one of said side members a cam catch secured to the freeend of sand tread plate and having a hook at one end and a recess at itsother end, a shoulder on the other side member for engagement by thehook of said cam, another shoulder on said side member for engagementwith the recess on said cam, said cam having a cam recess in its innerface, and a pin on said side member for engaging said cam recess.

lVILLIAM P. SARRETT. THOREA. BAKKE. i t-nesses CLARENDON H. TI-IORP,JOHN LANGMO.

T Cti'pies 'of this patentamay be obtained for five cents each, byaddressing the flommis sioner of Patents, Washingtomfl). G.

